Detection and Diagnosis of Broken Rotor Bar Based on the Analysis of Signals from a Variable Speed Drive

D. Ashari, Mark Lane, Andrew Ball, Fengshou Gu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the diagnosis of broken rotor bar (BRB) is investigated analytically and experimentally based on induction motors (IM) with variable speed drives (VSD). The analysis of the VSD process has understood that the sensorless control mode adjusts both supply voltage and current in order to maintain the operating speed within high accuracy. It means that any asymmetric problems with the rotor such as BRB will cause changes to current, voltage and power signals. Therefore, all of these signals can be used to diagnose BRB. However, experimental studies show that the components at twice slip frequency can be extracted more reliably in the spectrum of power signal which contains diagnostic information of both current and voltage signals. Consequently, it produces better results in separating different BRB cases under sensorless control mode, compared with that of using either current or voltage signal.
Original languageEnglish
Title of host publicationProceedings of the 3rd International Workshop and Congress on eMaintenance
Subtitle of host publicationeMaintenance2014 - Trends in technologies and methodologies, challenges, possibilities and applications
EditorsUday Kumar, Ramin Karim, Aditya Parida, Phillip Tretten
Pages41-46
Number of pages6
ISBN (Electronic)9789174399738
Publication statusPublished - 2014
Event3rd International Workshop and Congress on eMaintenance - Luleå University of Technology, Luleå, Sweden
Duration: 17 Jun 201418 Jun 2014
Conference number: 3
http://emaintenanceconference.org/eMaintenance2014/index.html (Link to Event Website)

Conference

Conference3rd International Workshop and Congress on eMaintenance
CountrySweden
CityLuleå
Period17/06/1418/06/14
Internet address

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  • Cite this

    Ashari, D., Lane, M., Ball, A., & Gu, F. (2014). Detection and Diagnosis of Broken Rotor Bar Based on the Analysis of Signals from a Variable Speed Drive. In U. Kumar, R. Karim, A. Parida, & P. Tretten (Eds.), Proceedings of the 3rd International Workshop and Congress on eMaintenance: eMaintenance2014 - Trends in technologies and methodologies, challenges, possibilities and applications (pp. 41-46)